Drift-fender and dyke



N. G. SCOTT. DRIFT FENDER A ND DYKE.' APPLICATION FILED SEPT. so. 1920.

Patented Mar. 8, 19.21.-

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his@ 6?/ LEVEL H\GH WATER L .OW WATER LEVEI- Y N. G. SCOTT. DRIFT TENDER AND TTYKE. APPLICATION FILED SEPT, 30, 1920.

Patnted Mar. 8, 1921.

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jzz'eZG. Seal@ i piles are employed NATHANIEL e. soo'r'r, or NEW ORLEANS, LOUISIANA,

DRIFT-FENDER AN D DYKE.

arsenite.

Specication of Letters Patent.

Patented Mar. 8, 1921.

Application filed September 30, 1920. Serial No. 413,739.

To all/whom ima-y concern:

Be itknown that I, NATHANIEL G. oofrfr, a citizen of the United States, residing in Yew Orleans, in the parish of Orleans and State of Louisiana, have invented certain new and useful Improvements in Drift- Fenders and Dykes, of which the following is aspeciiication.

T his invention relates particularly to fenders 'of the kind employed in rivers, channels or other water-ways to arrest drift wood and other such substances and prevent their deposit upon the banks of the water-way and also to dykes employed to prevent the wearing away of river banks and the banks of other water-ways.

ln carrying out my invention l drive a number of groups of piles vertically into the water-bed. and I connect these groups of piles by horizontally arranged wales. The piles of each group are connected and bound together by throat-pieces and batter to brace and strengthen the vertical piles. The upper ends of the batter piles extend over and rest upon the throat-pieces-and entend under the upper wale and are securely bolted to the throatpieces and to the vertical piles.. Short, inclined braces are bolted to the batter piles and to the lower wale to brace the batter piles and further strengthen the structure.

lVhen used as a dyke vertical piles are.

driven between the groups ot' piles which are notbraced by batter piles but which are arranged immediately in front of the top and bottom wales and are held in place thereby.

ln order to hold down the drift on the water surface and prevent it from banking up against the structure, l employ a float 'which is held in place closeto the structure by vertically arranged wires or cables which permit the tioat to rise and fall with the tide I but prevent it from being carried away from the piles.

ln the accompanying drawings Figure l is a perspective view of a drift Jfender embodying my improvements.

Fig. 2 is a view in vertical sectionof the fender shown in Fig. l. Y

l? 3 is a plan view of the parts shown in lFig. l with vertical piles driven between the lgroups of piles to provide a dyke.

Fig. Il is a plan View of the parts shown in Fig. l.

cal piles o are driven into thewater-bed where needed. I have shown only' three such groups in the drawings'. The piles a of each group are spread a short distance apart in order to receive the batter piles B which Iare preferably driven at an angle of about 45, their upper ends being disposed be# tween the vertical piles. There is a batter he two vertical piles of each group ar'e Se, cured together lby horizontally arranged throat-pieces C, and the vertical piles of all the groups are connected by upper and lower wales D, D. The upper wale D is arranged Just below the upper ends of the pile for each two vertical piles a of a group, i.

piles a and the lower Wale D is arranged as indicated at d2, the boards being arranged horizontally. and thus affording greater Strength and rigidity to the structure.

The upper ends of the batter piles rest on and are securely bolted to the throat-pieces C, as before described, and they are braced by inclined braces E bolted to them at e and bolted to the lower wale at e. In this way a tender of great strength is afforded.

When my invention is embodied in a dyke to prevent the wearing away of the banks of a water-way by breaking the force ofa current, the spaces between the groups A. of vertical piles a are filled by vertical piles F which need not be braced or secured to the wales as the vertical groups of piles connected as above described are sufficiently strong.

In yorder to'hold down the driftsl on the surface ofthe water, I employ a float H, made of boards secured together in any suitable way and arranged on the front side of the structure. In order to hold the float close to the structure but permit -it to rise and fall with the tide, I employ wires or cables M which extend through the float at m,

and are attached to the vertical piles a at m-' below water-level and they are attached to the upper ends of the vertical pile-f at m?,

as indicated in Fig. 2. These Wiies;or

by dotted lines in Fig. 2. This float serves which the upper portions to keep down the drift and prevent it from banking upV against the structure which keeps the banks clear of drift and also, when containing the piles F, prevents the banks from being washed.

When my invention is embodied in a dyke having the vertical piles F driven between the groups of piles A the bank of the waterway is protected from erosion by a very strong structure which, however, is not of such close construction as to prevent sand, silt and other substances held in suspension from being deposited behind the dyke, which will not only prevent cutting away of the bank but will build vout the land to the dyke.

I claim as my invention y `1. A drift fender 'or dyke comprisng a series of groups of vertical piles, batter piles having their upper ends arranged between the piles of each group and secured thereto, throat-pieces connecting the upper portions of the vertical piles of each group and to of the batter piles are secured, upper and lower Wales bolted LeT/niieto the vertical piles, and inclined braces bolted to the upper piles and 'secured to the lower wale.

2. A drift fender or dyke comprising a series ot.' groups of vertical piles, throatpieces connecting the piles of each group,

dyke comprising piles lbraced by batter spaces intervening bel tween them for thepassage of water and connected by wales and throat-pieces, a float on the front side of the fender and iexible cables attached to the vertical piles at their upper and lower ends and extending through the float to hold the latter close to the structure and permit it to rise and fall with the tide. y

In testimony whereof I have hereunto subscribed my nanie.

NATHANIEL e. scorie the upper wale and be- 

